Sealing device.



J. E. DOLDT.

SEALING DEVICE.

APPLICATION FILED FEB. 1. 1913.

1,232,U2. Patented July 10, 1917.

TATE PATNT JOHN E. DOLDT, OF PORTLAND, MAINE, ASSIGNOR T0 STAR SEALCOMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW' YORK.

SEALING DEVICE.

Application filed February 1, 1913.

To all whom it may concern:

Be it known that 1, JOHN E. Donor, a citizen of the United States,residing at Portland, county of Cumberland, State of Maine, haveinvented certain new and useful Improvements in Sealing Devices, ofwhich the following is a specification.

This invention relates to sealing or protecting devices, andparticularly to a bung seal or protector to be used on barrels, kegs,casks and analogous liquid containing receptacles.

For a long time there has been a demand among manufacturers anddistillers for a bung seal which could be applied to the receptacle soas to make impossible access to the contents thereof without mutilatingor destroying the seal, thereby preventing fraudulent tampering with thecontainer. These manufacturers and distillers usually desire to placeupon the receptacle containing their goods, an assurance or guarantythat the contents of the receptacle are genuine and have not beentampered with since leaving their plants.

To this end I have devised my present invention in which I employ anannular ring attached to the receptacle and a flexible diaphragm adaptedto be applied over the bung of the receptacle and expanded under thering, the seal thus provided effectually preventing access to thecontents of the receptacle without mutilating or destroying thediaphragm. The receptacle when thus sealed is incapable of beingrefilled without giving evidence of having been tampered with, therebyassuring the user that the contents are the original and genuineproduct.

The construction and operation of my device will be more fully disclosedin the specification which follows, and as illustrative of my inventionI have shown in the accompanying drawings an embodiment which I havefound practical and well adapted for commercial purposes.

Throughout specification and drawings similar characters of referenceare employed to denote corresponding parts, and in these drawings Figure1 is a sectional view through that part of a containing receptacleadjacent the bung hole illustrating the position of my seal withreference to the bung hole.

Specification of Letters Patent.

Patented July MD, 1917.

Serial No. 745,593.

Fig. 2 is a similar View showing the hung in the bung hole and the bungseal fastened down upon the bung.

Fig. 3 is a plan view, and

Fig. 4 is an enlarged fragmentary section illustrating the position ofthe diaphragm when it has been forced down upon the bung and engagedbeneath the ring on the receptacle.

I have indicated at 5 that portion of a containing receptacle in whichthe bung is mounted. This part has a hung hole (3 in which is seated asuitable bung 7 The portion 5 is counter-bored slightly so as to providean annular recess 8 which may be, as shown in the drawings, in the shapeof a V. This recess surrounds the bung hole externally but has noconnection therewith. A flat annular ring 9 is attached to the containerby any suitable fastenings 10 and has an annular opening concentricwith, but of slightly greater diameter than the bung hole.

The bung seal proper consists of a flexible diaphragm 11 depressedaround its edge as at 12 to provide an upturned flange 13 ofsubstantially the shape of the annular recess 8 of the container.

The advantage gained by cutting the recess 8 in the shape of a V isimportant. This counter-bore is V-shaped in order not to cut away thelength of the bung hole. The thickness of the board is therefore onlyreduced by such an amount as will enable the ring to have a flatlodgment around the outer edge of the bung hole, the seal being soshaped as to accommodate the bung and so applied as not to reduce thelength of the bung hole. When it is considered that such devices as arecommonly used have the effect of driving down the bung and therebyshortening the length of the bung hole, the advantage of the presentinvention is apparent as affording a construction which will not drivethe bung too deeply when the seal is set, or shorten up the length ofthe bung hole.

In use, the bung is inserted in the bung hole and the diaphragm placedon the bung and its edge forced down into the recess of the container byany suitable expanding tool. This causes the upturned flange 13 to bearagainst the under face of the ring 9, as best shown in Fig. 4t. The bungis now sealed and unauthorized access to the contents of the receptaclecan not be had Without mutilating the diaphragm.

The depressed portion 12 may be made to coincide exactly with thecorresponding face of the annular recess 8 or may be set at a sharperangle so as to be tilted when the seal is set, thus forcing the upturnedflange 13 more firmly against the lower face of the ring 9.

Various modifications in the construction and operation of my inventionmay obviously be resorted to if Within the limits of the appendedclaims.

That I therefore claim, and desire to secure by Letters Patentis:

1. In combination with a container having an opening therein and havingan adjacent recess, a member secured to the surface of said containerand slightly overlying said recess therein, and a sealing membercovering said opening of the container so as not to materially reducethe effective length thereof and comprising a depressed portion sodisposed as to be tilted when the seal is set and a portion adapted tobe forced against one face of the rigid member by the tilting of thedepressed portion.

2. In combination With a container having an opening therein and havingan annular recess, a member secured to said container and partiallyoverlying said annular recess therein and a second member covering saidopening of the container and disposed so as not to materially reduce theeffective length thereof and depressed about its edge to fit said recessand to provide a flange to bear against the under face of said firstnamed member.

3. In combination With a container hav- JOHN: noLnr; IVitnesses:

GERRY L. BRooKs, F. H. Fnos'r.

Copies 01 this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. G. i

